In SX Microcontrollers, SX/B Compiler and SX-Key Tool, Tony Leyland wrote:

Hi Bean,

Thanks a lot. Yes I agree, it's been an exciting time learning how to produce a board form scratch and then power
it up and hopefully it works !

Yes, its just the toner straight from the TTS paper.  Applied in the same way as for the copper tracks etc.  I've found that
the toner actually fuses to the glass fibre board and so the black legend is quite tough.  If you do remove the toner with Acetone,
it is still visible as it has 'burnt' into the face of the board. 

I tried the white film paper (to get that nice silk screen effect found on pro boards), but found that it blured the text too much. 
That's why I've used just the toner.

The photo was taken just after soldering as I was about to apply flux remover and I was worried that the toner would come off.
I'm happy to say that after applying it, the toner stayed on completely and the board looks better.


Hi Electronegativity,

I had hoped to use the tin plate method you mention, but my supplier had insufficient stock and has only just
sent it to me today !  I wonder if I could dip the whole board in it now...

All my future ones will be tinned and hopfully make soldering the SX-48 easier.

Cheers
Tony

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